164 PALEONTOLOGY OF NEW JERSEY. 



the columellar lip are also somewhat remarkable, and would seem to ally 

 the shell with the genus Ginulia Grrey as nearly as with Solidula. In fact, 

 I have been strongly inclined to place it under that genus. The deflection 

 of the upper margin of the outer half of the body whorl, by which a very 

 much greater proportion of the preceding whorl is exposed on that side, is 

 also a marked feature. 



Formation and hcaUty : Dr. Morton gives only "New Jersey" as the 

 locahty. The specimens are from a brownish marl with green grains, and 

 resembles that of the brown beds near Burlington and Mulhca Hill, New 

 Jersey, and I think are most probably from the former place. I have not 

 seen any other specimens than the types, which are from the collection 

 Acad. Nat. Sci., Phila. 



CYLICHNID^. 



Genus CYLICHNA Loven. 



Cylichna recta. 



Plate XX, Figs. 10, 11. 



Bulla recta Gabb : Jour. Acad. Nat. Sci., Phila., 3d ser., vol. 4, p. 303, PL xlviii, 



Fig. 16 ; Fig. 17 on Plate. 

 Cylichna recta Gabb : Synopsis, p. 47 ; Meek, Check List Cret. and Jur. Foss. , p. 



16; Geol. N. J., Newark, 1868, p. 738. 



Shell small, measuring only about half an inch in extreme length, form 

 cylindrical, largest below, with nearly straight sides; spire deeply sunken 

 in the cast; aperture large and the lip nearly straight on the sides, but 

 gradually expanding below; columella curved; surface unknown. 



This small species is the only one yet found in the New Jersey Creta- 

 ceous, and appears to be very rare, as the type specimen is the only one yet 

 known, so far as I have been able to learn. Mr. Meek has recognized two 

 species in the western Cretaceous, G. scitiiJa and G. volvaria, the latter doubt- 

 fully a Gylichna, and Dr. Shumard described three species from Texas, but 

 none of them is nearly related to this one, in which the sides are so dis- 

 tinctly flattened that it can not be well mistaken. 



